Message:20729 In: SPACWX.USA
From: N4SDDate: Mon, 13 Apr 26 00:31:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather Forecast Discussion
Message-ID: <11046_N4SD>
Path: N2MH4|N3MEL|N3FUD|KA3VSP|N4SD
R:260413/0635Z 30157@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260413/0635Z 15571@N3MEL.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260413/0633Z 5915@N3FUD.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260413/0632Z 688@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260413/0031Z 11046@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
FXXX12 KWNP 130031
DAYDIS
:Product: Forecast Discussion
:Issued: 2026 Apr 13 0030 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
# Forecast Discussion
#
Solar Activity
.24 hr Summary...
Solar activity was at low levels. Region 4417 (S08W88, Dao/beta)
produced most of the X-ray activity, with the strongest being a C2.4
flare at 12/0738 UTC as it rotated near the W limb. Only minor changes
were observed in the other two numbered active regions on the visible
disk: Region 4415 (S18E18, Cso/beta) developed leading spots becoming a
bipolar group and Region 4416 (N19W11, Dai/beta) showed growth and
consolidation in both its leading and trailing spots. No Earth-directed
CMEs were observed in available coronagraph imagery.
.Forecast...
Solar activity is expected to be at low levels, with a slight chance for
M-flares (R1-R2/Minor-Moderate) over 13-15 Apr.
Energetic Particle
.24 hr Summary...
The greater than 2 MeV electron flux was at high levels with a peak flux
of 1,609 pfu at 12/1810 UTC. The greater than 10 MeV proton flux was at
background levels.
.Forecast...
The greater than 2 MeV electron flux is likely to reach high levels
likely on 13-15 Apr. The greater than 10 MeV proton flux is expected to
remain at background levels.
Solar Wind
.24 hr Summary...
Solar wind parameters reflected continued influence from a positive
polarity coronal hole. Total magnetic field strength ranged between 3-6
nT and Bz reached as far south as -4 nT. Solar wind speeds steadily
declined from ~575 km/s to as low as ~450 km/s by the end of the UT day.
Phi angle was predominantly oriented in a positive solar sector.
.Forecast...
Solar wind parameters are expected to remain enhanced over 13-15 Apr due
to continued +CH HSS influences.
Geospace
.24 hr Summary...
The geomagnetic field was quiet.
.Forecast...
The geomagnetic field is expected to be at quiet to unsettled levels on
13-14 Apr, with active conditions likely on 15 Apr, under continued +CH
HSS influences.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
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